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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-tk-lib
* Created on: 20 авг. 2020 г.
*
* lsp-tk-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-tk-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-tk-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_TK_WIDGETS_GRAPH_GRAPHFRAMEBUFFER_H_
#define LSP_PLUG_IN_TK_WIDGETS_GRAPH_GRAPHFRAMEBUFFER_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
// Style definition
namespace style
{
LSP_TK_STYLE_DEF_BEGIN(GraphFrameBuffer, GraphItem)
prop::GraphFrameData sData; // Framebuffer data
prop::Float sTransparency; // Framebuffer transparency
prop::Integer sAngle; // Framebuffer rotation angle
prop::Float sHPos; // Horizontal position
prop::Float sVPos; // Vertical position
prop::Float sHScale; // Width, proportional to the graph size
prop::Float sVScale; // Height, proportional to the graph size
prop::Color sColor; // Base color
prop::GraphFrameFunction sFunction; // Function
LSP_TK_STYLE_DEF_END
}
class GraphFrameBuffer: public GraphItem
{
public:
static const w_class_t metadata;
private:
GraphFrameBuffer & operator = (const GraphFrameBuffer &);
GraphFrameBuffer(const GraphFrameBuffer &);
protected:
typedef void (GraphFrameBuffer::*calc_color_t)(float *rgba, const float *value, size_t n);
protected:
prop::GraphFrameData sData; // Framebuffer data
prop::Float sTransparency; // Framebuffer transparency
prop::Integer sAngle; // Framebuffer rotation angle
prop::Float sHPos; // Horizontal position
prop::Float sVPos; // Vertical position
prop::Float sHScale; // Width, proportional to the graph size
prop::Float sVScale; // Height, proportional to the graph size
prop::Color sColor; // Base color
prop::GraphFrameFunction sFunction; // Function
bool bClear; // Perform full cleanup of image
size_t nRows; // Cached number of rows
size_t nCols; // Cached number of columns
calc_color_t pCalcColor; // Function to compute
float *fRGBA; // RGBA buffer for applying effects
uint8_t *vRGBA; // RGBA buffer for drawing
uint8_t *pfRGBA; // Unaligned RGBA buffer
size_t nCapacity; // RGBA buffer capacity
size_t nPixels; // Number of pixels
protected:
void calc_rainbow_color(float *rgba, const float *value, size_t n);
void calc_fog_color(float *rgba, const float *v, size_t n);
void calc_color(float *rgba, const float *value, size_t n);
void calc_lightness(float *rgba, const float *value, size_t n);
void calc_lightness2(float *rgba, const float *value, size_t n);
void destroy_data();
virtual void property_changed(Property *prop);
public:
explicit GraphFrameBuffer(Display *dpy);
virtual ~GraphFrameBuffer();
virtual status_t init();
virtual void destroy();
public:
LSP_TK_PROPERTY(GraphFrameData, data, &sData)
LSP_TK_PROPERTY(Float, transparency, &sTransparency)
LSP_TK_PROPERTY(Integer, angle, &sAngle)
LSP_TK_PROPERTY(Float, hpos, &sHPos)
LSP_TK_PROPERTY(Float, vpos, &sVPos)
LSP_TK_PROPERTY(Float, hscale, &sHScale)
LSP_TK_PROPERTY(Float, vscale, &sVScale)
LSP_TK_PROPERTY(Color, color, &sColor)
LSP_TK_PROPERTY(GraphFrameFunction, function, &sFunction)
public:
virtual void render(ws::ISurface *s, const ws::rectangle_t *area, bool force);
virtual void draw(ws::ISurface *s);
};
}
}
#endif /* LSP_PLUG_IN_TK_WIDGETS_GRAPH_GRAPHFRAMEBUFFER_H_ */
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